Are any of these tests signficant? How would they be written up in APA fomat?
Q: A car enthusiast wants to determine if his car indeed travel 640 km on a full tank of a particular…
A:
Q: The mean weight of female aerobics instructors in a certain city is more than 132 lbs. Express the…
A: Claim : The mean weight of female aerobics instructors in a certain city is more than 132 lbs.
Q: False
A: Here the besting claim is students on average spend more than 1 hour per homework assignment. So,…
Q: Suppose a professional basketball player historically makes 39% of his three-point field goals.…
A: The null hypothesis can be defined as the hypothesis of no difference or equality, while the…
Q: What is the Mean no, of Calls (u)?
A: First we have to calculate the missing value by using the fact that sum of probabilities of possible…
Q: The mean weight of male aerobics instructors in a certain city is less than 187 Ibs. Express the…
A:
Q: The instructor of a discrete mathematics class gave two tests. Forty percent of the students…
A: It is known that x is xy×100% of y and y is yx×100% of x.
Q: s, the following 2 → 2 tables were ol arance of gallstones) versus no resp Negativ Positive
A: negative positive total plasibo a c a+c ursodiol b d b+d total a+b c+d a+b+c+d…
Q: Solve for the discrimination indexes of the following test items: Item No. 1 2 4 5 UG LG UG LG UG|…
A: Hello! As you have posted 2 different questions, we are answering the first question (D). In case…
Q: Nhich of the following statements is NOT TRUE about the epresentativeness of sample?" If a…
A: a) If a researcher wanted to study about a small population, the proportion of her sample should be…
Q: An attorney claims that more than 25% of all lawyers advertise. A sample of 200 lawyers in a certain…
A: Given,sample size (n)=200no.of lawyers advertise (X)=63sample proportion (p^)=Xnp^=63200=0.315α=0.05
Q: If a Test of Independence were run, what is the number of degrees of freedom this test would…
A: The number of degrees of freedom this test = (r-1)*(c-1) = 2*2 = 4
Q: How many degrees of freedom are there in the numerator and denominator of the F test?
A: Given: n1=22S12=161.5n2=22S22=131.5
Q: a certain test for a particular cancer is known to be 95% accurate. a person submits to the test an…
A:
Q: In sample 400 parts manufactured by a factory, the number of defective parts was found to be 30. The…
A: Hypotheses are H0: P≤0.05 H1: P> 0.05
Q: .000 ull: Rejec laim: re is no me ests similar
A: Given :
Q: aul received a score of 70 on a history test for which the class meam ass? biology test O history…
A: Concept: A z-score is known as the standard score that determines how much the data point deviates…
Q: what is the probablity that matts outfit for work will inlcude an orange shirt for the day?
A:
Q: ou are dispatched to a scene where the body of a woman has been found in a bathtub. She was last…
A: To know whether she was likely taking a shower , bath or neither . There are few thing that we…
Q: does AI = A hold or not?
A:
Q: A researcher is conducting a Chi2 for Independence test to evaluate a relationship between gender…
A: State the hypotheses. Null hypothesis: Alternative hypothesis:
Q: Could also you please show how to find Critial Values, Test Statisitc T, and the P value
A: Given that,
Q: what is the contrapositive of the statement “If you have passed MAC4411, then you can’t receive…
A:
Q: How does qualification of one tail test is done?
A:
Q: A security expert claims that more than 12% of all homeowners have a home security alarm. State Ho…
A: Let p be the population proportion of home owners have a home security alarm. The claim is that more…
Q: Show that the minimal sufficient statistic for the uniform(8,0 +1) is not complete.
A:
Q: Justify these derived rules of inference: 1. Modus tollens 2. Contrapositive
A:
Q: discuss a situation where you would test for independence.
A: Test of independence determines whether two factors/ variables are independent or dependent.…
Q: adults would erase all of their personal information online if they could. A software firm survey of…
A: Null hypothesis H0 : a minority of adults would erase their personal information online H0: P= P0
Q: A social worker reports that 30% of the recipients of the emergency subsidy already received the…
A: Given X=38, n=120 pcap=X/n p=0.30 We want to test the hypothesis
Q: Consider a car seller who sells four brands (A, B, C, and D) of cars. He says that he does not give…
A: The claim of the test is that all the brands of cars are equally important (equally likely). The…
Q: 9. Given that u = 34.18, µo 37 and we have a left tail test is it possible to have a Type error?…
A:
Q: Are these right?
A:
Q: Find the degrees of freedom needed for a test of independence. Male Female Voted 12 15 Did not…
A:
Q: Determine whether the alternate hypothesis is left-tailed, right-tailed, or twa-tailed.
A: We know that, H0 :μ =24 versus H1:μ ≠24 We have to check the above alternative hypothesis is,…
Q: The mean weight of male aerobics instructors in a certain city is more than 182 lbs. Express the…
A:
Q: State the null & alternative hypothesis in mathematical notation.
A: Test is that whether eating fish makes one smarter.
Q: Globally, 35% of all ridged brittleshell tortoises have spots on their shells. A herpetologist in…
A: According to guidelines we solve first question only when given questions are different.
Q: Class of 2016 3 5 10 B A
A:
Q: Shuster (1991) describes an case involving the sale of cc packets of cocaine, of which actually be…
A: Solution
Q: Suppose "Naturally Gassy" magazine claims that 35% A hypothesis test is to be performed to determine…
A: Given information, p^=47%=0.47n=60p=35%=0.35
Q: According to the Centers for Diseases Control and Prevention (CDC), the average height of a male in…
A:
Q: The US justice system considers an accused person innocent until proven guilty and there has to be…
A: The US justice system considers an accused person innocent until proven guilty and there has to be…
Q: Failing to reject Ho and Accepting Ho are both appropriate conclusions that mean the same thing.…
A: The null hypothesis states that a population parameter such as mean,std,variance is equal to a…
Q: The mean weight of male dancers in a local modern dance company is at most 160 Ibs. Express the null…
A: Let μ be the mean weight of male dancers in a local modern dance company
Q: Participants in an experiment are asked to flip a fair coin and report the outcome. If they report…
A: There is an incentive for the participant to report Heads as the outcome of the tossing a fair coin…
Q: Express the null hypothesis Ho and the olternative hypothesis Ho in notation form in the following…
A:
Are any of these tests signficant? How would they be written up in APA fomat?
![ANOVA - Energy
Sum of Squares
df
Mean Square
Reference Group
36.6
1
36.6
0.0756
0.784
0.001
Norm
177.8
1
177.8
0.3676
0.546
0.005
Reference Group * Norm
1026.6
1
1026.6
2.1229
0.149
0.026
Residuals
38201.8
79
483.6
(3]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F986c250f-a597-48f1-9828-bb6f99a5978c%2Fbe34e311-0715-4849-be8f-8acbf8c272cb%2Ftoqpxw_processed.png&w=3840&q=75)
![ANOVA - Mental Health
Sum of Squares
df
Mean Square
F
Reference Group
110.0
1
110.0
0.199
0.657
0.002
Norm
75.8
1
75.8
0.137
0.712
0.002
Reference Group * Norm
128.2
1
128.2
0.232
0.631
0.003
Residuals
44199.7
80
552.5
[3]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F986c250f-a597-48f1-9828-bb6f99a5978c%2Fbe34e311-0715-4849-be8f-8acbf8c272cb%2Fbpspi5m_processed.png&w=3840&q=75)
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- A school psychologist wants to test the effectiveness of a new method for teaching reading. She takes 500 first grade students from District 12 (all with the same teacher), and randomly assigns half of them to the traditional method and half of them to the new method for teaching reading. The students are not told which teaching method they are being taught with. At the end of the year, she obtains all scores on a reading achievement test, and looks for any differences between the two groups. f. Is double-blinding possible in this experiment? Why or why notg. g. If the school psychologist wanted to allow more districts to participate in the study, how could the study be redesigned? Draw a diagram representing the design, and include four districts in your design. h. If the school psychologist wanted to examine whether the new teaching method improved reading scores, how could the study be redesigned? Explain.A school psychologist wants to test the effectiveness of a new method for teaching reading. She takes 500 first grade students from District 12 (all with the same teacher), and randomly assigns half of them to the traditional method and half of them to the new method for teaching reading. The students are not told which teaching method they are being taught with. At the end of the year, she obtains all scores on a reading achievement test, and looks for any differences between the two groups. f. Is double-blinding possible in this experiment? Why or why not?In 20162016, the Chicago Cubs defeated the Cleveland Indians to become the champions of Major League Baseball. Following are the salaries, in millions of dollars, of the players on each of these teams. Cubs20.0012.009.508.808.057.755.695.293.632.672.532.512.500.650.540.530.530.520.520.520.510.510.510.510.51Cubs20.005.290.540.5112.003.630.530.519.502.670.530.518.802.530.520.518.052.510.527.752.500.525.690.650.51
- Workers in Company XYZ used 200 computers for their daily operation. In that company, the computers are categorized into type A and B. The workers usually complained that they experience performance problems with the computers more than once per week. Based on a survey, the company found that fifty of the Type A computers will encounter problems more than once per week. Meanwhile seventy-five of the Type B computers do not experience problems more than once per week. There are 120 Type B computers in the company. Based on the above scenario determined whether the events “Type A computer” and “experience problems more than once per week” are independent event? Explain.2. Many companies are experimenting with “flex-time,” allowing employees to choose their scheduleswithin broad limits set by management. Among other things, flex-time is supposed to reduce absenteeism. One firm knows that in the past few years, employees have averaged 6.3 days off from work(apart from vacations). This year, the firm introduces flex-time. Management chooses a simple randomsample of 100 employees to follow in detail, and at the end of the year, these employees average 5.5days off from work, and the sample standard deviation (SD) is 2.9 days.(a) Did absenteeism really go down, or is this just chance variation? Formulate the null and alternativehypotheses and carry out the testing.(b) Repeat the above for a sample average of 5.9 days and an SD of 2.9 days.Define Probability matrix.
- 4. A study was conducted among men in the United States in order to find out whether a mother’s use of hormones during her pregnancy affected her son’s risk of developing testicular cancer. Investigators selected 1000 men who were hospitalized for testicular cancer, and 1000 men of the same ages hospitalized for other, non-cancer conditions. The study found that of the men with testicular cancer, 400 of their mothers had used hormones during that pregnancy; and of the men with other non-cancer conditions, 100 of their mothers had used hormones during pregnancy A.Calculate the relative measure of association identified aboveB.Calculate a 95% confidence interval for the relative measure of association you identified above.4. A study was conducted among men in the United States in order to find out whether a mother’s use of hormones during her pregnancy affected her son’s risk of developing testicular cancer. Investigators selected 1000 men who were hospitalized for testicular cancer, and 1000 men of the same ages hospitalized for other, non-cancer conditions. The study found that of the men with testicular cancer, 400 of their mothers had used hormones during that pregnancy; and of the men with other non-cancer conditions, 100 of their mothers had used hormones during pregnancy A.Calculate the relative measure of association identified aboveB.Calculate a 95% confidence interval for the relative measure of association you identified above. C.Interpret your relative measure of association (remember to include magnitude and units if necessary) and confidence interval. Be sure to compare to the null value.In quality control process of 3 items of a company, it has been established that product A corresponds to 28% of total production, product B corresponds to 35% of total production and rest corresponds to product C, of product A 1.2% of the items have some kind of failure. 2.5% of product B have failure and 3.1% of items of product C have failures. According to these data is or are true following statements: I. Total probability of failure of company's items is about 2.4%.II. Probability that an item that is failed is of production B is approximately 36.5%.III. If a product is selected at random, probability that it is of type C and that it is not failed is about 35.9%.Select ONLY one:a. Only Ib. Only IIc. Only IIId. II and IIIe. I, II and III
- A researcher wants to know why individuals in Community A have a higher rate of a rare form of cancer when compared to those living in Community B. To find out the reasons for the differences in cancer rates in these two communities, the investigator surveyed residents about their lifestyle, noted the types of businesses that were present in the community and searched medical records. The researcher found that the headquarters for the Toxico Chemical Plant is located in Community A, there is a higher rate of cigarette smoking in this community and residents tended to delay or skip going to the doctor for an annual checkup. In Community B, the largest employer was a department store and on average, residents did not smoke as much as residents from Community A. However, like individuals from Community A, Community B residents tended to delay or skip their annual checkup with their doctor. 1. What makes this a descriptive study?a man is investigating the populaion of bear in two areas. Area 1 and Area 2. He expect the number of bear to be X and Y in area 1 and area 2 to be Poisson- distributeted. If a bear is in one of his areas , there is an expected probability of 0.2 for the dear to be observed. If there are 5 dear in one of the areas what is the probability for 3 of them to be observed and what is expected dears observed ?9. NFL Pre-SeasonTeams in the National Football League (NFL) in the US play four pre-season games each year before the regular season starts. Do teams that do well in the pre-season tend to also do well in the regular season? We are interested in whether there is a positive linear association between the number of wins in the pre-season and the number of wins in the regular season for teams in the NFL. (a) What are the null and alternative hypotheses for this test? (b) The correlation between these two variables for the 32 NFL teams over the 10 year period from 2005 to 2014 was 0.067. Use this sample (with n=320) to calculate the appropriate test statistic and determine the p-value for the test. Round your answers to two decimal places. (c) State the conclusion in context, using a 5% significance level. Options below: 1. Do not reject H0. We find evidence that there is not a positive linear association between wins in the pre-season and wins in the regular season. 2. Do not reject H0.…
